Check in code for new random number generator

luprex/core/cpp/luastack.hpp

@@ -334,6 +334,10 @@ public:
     int result();
 
 public:
+    // This is the largest integer that can be stored in a lua_Number.
+    // In other words, any 53-bit number can be stored.
+    static const int64_t MAXINT = 0x001FFFFFFFFFFFFF;
+
     static lua_State *newstate (lua_Alloc allocf);
 
     lua_State *state() const { return L_; }